Radio communication device with flexible indicating function

ABSTRACT

A radio communication device enables a message received to be displayed by flexible format. The selective-calling receiver as a receiver comprises a radio section for demodulating the selective-calling signal with it received, a calling number storage section for storing therein a plurality of self-selective-calling numbers, an agreement detector for detecting whether or not demodulated selective-calling signal agrees with which one of the plurality of self-selective-calling signal, a memory for storing therein a plurality of calling separation information for separating whether message information following to self-selective-calling number and selective-calling number agreeing to be detected agree with which one of the plurality of self-selective-calling numbers, a indicator for displaying the message information, and a display measure for permitting message information within the memory to display on the indicator, wherein the display measure permits the message information to display on the indicator in accordance with prescribed display format determined beforehand in every selective-calling number.

BACKGROUND OF THE INVENTION

[0001] The present invention relates to a radio communication device. More to particularly this invention relates to a radio communication device with flexible indicating function of reception message in the side of receiver thereof.

DESCRIPTION OF THE PRIOR ART

[0002] In the conventional information service using a selective-calling receiver, a side of transmitting station transmits a transmission information using a format in conformity with a indicator of the selective-calling receiver.

[0003] Consequently, when the service is intended to perform using a plurality of kinds of receivers whose number of digits of indicator are different, the format should conform with the number of digits of small indicator or change of software in the side of the receiver is forced.

[0004] Furthermore, when the information service is already performed using the selective-calling receiver, there is the problem that it is incapable of being shifted to new service, even though the service of new configuration is intended to commence, caused by restriction of the number of digits of the indicator of the side of the receiver, and of display software in conformity with the number of digits.

SUMMARY OF THE INVENTION

[0005] In view of the foregoing, it is a first object of the present invention, in order to overcome the above-mentioned problem to provide a radio communication device which enables message received to be displayed by flexible format.

[0006] Further, it is a second object of the present invention to provide a radio communication device which enables a message received to be displayed in conformity with the number of digits of the indicator.

[0007] Furthermore, it is a third object of the present invention to provide a radio communication device which enables a message received to be displayed in conformity with number of digits specified by transmission side.

[0008] Moreover, it is a fourth object of the present invention to provide a radio communication device which enables a message received to be displayed in conformity with number of digits which change dynamically.

[0009] According to a first aspect of the present invention, in order to achieve the above-mentioned objects, there is provided a radio communication device whose receiver comprises a radio section for receiving a selective-calling signal to demodulate it, a calling number storage section for storing therein a plurality of self-selective-calling numbers, an agreement detector for detecting whether or not demodulated selective-calling number agrees with which one of a plurality of self-selective-calling numbers, a memory for storing therein a plurality of calling separation information for separating whether the message information following to the self-selective-calling number and the self-selective-calling number agreeing to be detected agree with which one of a plurality of self-selective-calling number, a indicator for displaying the message information, and a display means for permitting the message information within the memory to be displayed in the indicator, wherein the display means displays the message information in the indicator in accordance with prescribed display format determined beforehand in every selective-calling number.

[0010] According to a second aspect of the present invention, in the first aspect, there is provided a radio communication device, wherein the display format includes a format for determining number of digits for display in the side of selective-calling receiver of the radio communication device, and the display means does not performs a line feed according to a line feed code within the message information, thus the display means permits the message information to display to the indicator in conformity with the number of digits for display of the indicator.

[0011] According to a third aspect of the present invention, in the first aspect, there is provided a radio communication device, wherein the display format includes a format for determining the number of digits for display in the side of transmission, and the display means counts number of digits of the message information, when the number of digits of the message information is either smaller number than the number of digits of the indicator or equal to the number of digits of the indicator, the display means permits the message information to display on indicator while performing line feed by line feed code, while when the number of digits of the message information is larger number than the number of digits of said indicator, the display means permits the message information of the whole to display on the indicator while performing automatic scroll in the lateral direction.

[0012] According to a fourth aspect of the present invention, in the first aspect, there is provided a radio communication device, wherein the display means, when receiving a prescribed character string determined beforehand, changes the display format into a display format corresponding to the character string.

[0013] The above and further objects and novel features of the invention will be more fully understood from the following detailed description when the same is read in connection with the accompanying drawings. It should be expressly understood, however, that the drawings are for purpose of illustration only and are not intended as a definition of the limits of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0014]FIG. 1 is a block diagram showing one embodiment of a selective-calling receiver according to the present invention;

[0015]FIG. 2 is a flowchart showing a software realizing a display means of the selective-calling receiver according to the embodiment 1 of the present invention;

[0016]FIG. 3 is a flowchart showing a software realizing a display means of the selective-calling receiver according to the embodiment 2 of the present invention;

[0017]FIG. 4 is a flowchart showing a software realizing a display means of the selective-calling receiver according to the embodiment 3 of the present invention;

[0018]FIG. 5 is a flowchart showing a software realizing a display means of the selective-calling receiver according to the embodiment 3 of the present invention; and

[0019]FIG. 6 is a view showing a format of POCSAG signal which is one example of fundamental form of selective calling signal used for calling of the selective-calling receiver.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] A preferred embodiment of the present invention will be described in detail in accordance with the accompanying the drawings.

[0021]FIG. 1 is a block diagram showing one embodiment of a selective-calling receiver of the present invention.

[0022] Modulation signal (a) obtained from the antenna 1 is demodulated by the radio section 2.

[0023] The radio section 2 performs intermittent reception operation according to battery saving control signal (b) of a decoder 3.

[0024] One chip microcomputer 4 (hereinafter referring to CPU) reads out selective-calling number of self-receiver established in EEPROM 6 (electrically erasable programmable read-only memory) to establish it in the decoder 3(e).

[0025] The decoder 3 performs collation of data between the selective-calling number of self-receiver and the data (c) demodulated in the radio section 2. When the selective-calling number of self-receiver agrees with the data (c), the decoder 3 outputs the effect of detection of the selective-calling number to the CPU 4 using interrupt signal (d), address bus (e), and data bus (f) (hereinafter, referring to CPU interface while collecting d, e, and f). Subsequently, the decoder 3 carries out error correction of the transmitted data following the selective-calling signal, thus transferring only information bit to the CPU 4 using CPU interface in every one code word (referring to FIG. 6).

[0026] Further, POCSAG signal format of FIG. 6 will be described. A batch stream consists of a preamble, a synchronizing signal (SC), a selection signal, a message signal, and batch. The preamble is a bit string in which “1010 . . . ” continues by 576 bits. The synchronizing signal is a signal for synchronizing with the code word (describe later). The selective-calling signal is that the number (selective-calling number) which is peculiar to respective selective-calling receivers is subjected to BCH encoding, thus MSB of the code word constituting selective-signal is zero (0). The message signal is that transmission message is subjected to BCH encoding, thus MSB of the code word constituting message signal is one (1). One batch consists of the synchronizing signal (SC), and a plurality of code words. The code word is that parity is added to BHC (31, 21) code.

[0027] The CPU 4 receives information of selective-calling number from the decoder 3, to store in a RAM within the CPU 4 or an external RAM 7 as a call discrimination information. Subsequently, when the data is transmitted successively from the decoder 3, The CPU 4 judges whether the data is a message information or a selective-calling code. When the data is the message information, the CPU 4 stores in the RAM within the CPU 4 or in the buffer area within the external RAM 7. The CPU 4 processes the processing with a reference clock 13(g) as an operation clock. If the data changes into the selective-calling code. At the point of time, the CPU 4 ceases from receiving the data, simultaneously, triggering a CPU operation clock 14, so that the CPU 4 stores in the message memory area within the external RAM 7 the data accumulated in the buffer until then as a message (character data) while processing by using the CPU operation clock 14.

[0028] [Embodiment 1]

[0029]FIG. 2 is a flowchart showing software realizing display means of the selective-calling receiver according to the embodiment 1 of the present invention.

[0030] The software realizing display means is a program of the CPU4. The display means reads-out the information of selective calling number of the received message from the RAM within the CPU 4 or the external RAM 7. The display means selects corresponding display format in accordance with the read-out information of selective-calling number. The display means displays the message according to the format selected.

[0031] Referring to FIG. 2, the receiver waits for reception of the message (STEP S201), when receiving the message, thus judging the selective calling number (STEP S202), subsequently, selecting the display format corresponding to the selective-calling number (STEPs STEP S203 to STEP S204), moreover, displaying message according to the selected display format (STEP S205).

[0032] [Embodiment 2]

[0033]FIG. 3 is a flowchart showing software realizing display means of the selective-calling receiver according to the embodiment 2 of the present invention.

[0034] The software realizing display means is a program of the CPU4. The display means reads-out the information of selective calling number of the received message from the RAM within the CPU 4 or the external RAM 7. The display means selects display format according to the number of digits in conformity with a display screen of the side of selective-calling receiver, as the display format selected in accordance with read-out the information of selective calling number.

[0035] At this time, the display means ignores a line feed code within the message received, to display the message in conformity with the number of digits for the display of the selective-calling receiver.

[0036] Referring to FIG. 3, the receiver waits for reception of the message (STEP S201), when receiving the message, thus judging the selective calling number (STEP S202). Subsequently, if the selective-calling number is anyone of 1 to n−1, selecting the display format corresponding to the selective-calling number (STEP S203), thus displaying message according to the chosen display format (STEP S205). While if the selective-calling number is n, selecting the number of digits for the display in conformity with the number of digits of the indicator 5 (STEP S301), thus ignoring the line feed within the message, before, displaying the message according to the number of digits of the indicator 5 (STEP S302).

[0037] [Embodiment 3]

[0038]FIG. 4 is a flowchart showing software realizing display means of the selective-calling receiver according to the embodiment 3 of the present invention.

[0039] The software realizing display means is a program of the CPU4. The display means reads-out the information of selective-calling number of the received message from the RAM within the CPU 4 or the external RAM 7. The display means selects display format in which the number of digits for the display is determined by the side of transmission, by transmitting from the side of transmission while adding the line feed code as the display format selected in accordance with read-out information of the selective-calling number.

[0040] At this time, the display means counts the number of digits of the received message. When the number of digits of the message is smaller number of digits than the number of digits of the display screen, the display means carries out the line feed depending on the line feed code to display the message, while when the number of digits of the message is larger number than the number of digits of display screen, the whole message is displayed while performing automatic scroll of the whole messages in the lateral direction.

[0041] Referring to FIG. 4, the receiver waits for reception of the message (STEP S201), when receiving the message, thus judging the selective-calling number (STEP S202). Subsequently, if the selective-calling number is anyone of 1 to n−1, selecting the display format corresponding to the selective-calling number (STEP S203), thus displaying message according to the selected display format (STEP S205). On the other hand, if the selective-calling number is n, selecting the number of digits specified by the side of transmission (STEP S401), before counting the number of digits specified by the side of transmission (STEP S402), thus judging whether or not the number of digits specified by the side of transmission is larger number than the number of digits of the indicator 5 (STEP S403). In case of larger number, the display means displays the whole of message while performing automatic scroll in the lateral direction regarding the whole message (STEP S404), while when the number of digits specified by the side of transmission is smaller number than the number of digits of the indicator 5, the display means displays the message while performing line feed in accordance with the line feed code within the message (STEP S405).

[0042] [Embodiment 4]

[0043]FIG. 5 is a flowchart of software for realizing display means of the selective-calling receiver according to the embodiment 4 of the present invention.

[0044] The software realizing display means is a program of the CPU4. The display means reads-out the information of selective calling number of the received message from the RAM within the CPU 4 or the external RAM 7. The display means selects corresponding display format in accordance with the read-out information of selective-calling number. The display means displays the message according to the selected format.

[0045] At this time, the display means receives prescribed special character string determined beforehand while receiving the message, the display means enables the display format corresponding to the special character string to be changed from halfway.

[0046] For instance, the display means permits the selective-calling number 1 to correspond to the format for displaying the number of digits in conformity with the display screen of the side of the selective-calling receiver (hereinafter referring to format 1), described in FIG. 3, while the display means permits the selective-calling number 2 to correspond to the format which is capable of determining the number of digits of the display in the side of transmission by adding to be transmitted the line feed code from the side of the transmission (hereinafter referring to format 2).

[0047] Further, the display means permits the special character string “>” to correspond to the format 1, and the special character string “− −” to correspond to the format 2.

[0048] Even though a service company of the selective-calling receiver provides news in accordance with the format 1 using the selective-calling number 1, it is capable of being transmitted a score table of the base ball in accordance with the format 2 from halfway using the same selective-calling number. In this case, it is sufficient to range the special character string “− −” in front of the message of the score table.

[0049] Referring to FIG. 5, the receiver waits for reception of the message (STEP S201), when receiving the message, thus judging the selective calling number (STEP S202), subsequently, selecting the display format corresponding to the selective-calling number (STEPs STEP S203 to STEP S204), moreover, displaying the message according to the selected display format (STEP S205).

[0050] Next, the subscriber finds whether or not the selective-calling receiver receives the special character string for the sake of format selecting (STEP S502), when the selective-calling receiver receives the special character string, proceeding to STEP S503, while when the selective-calling receiver does not receive the special character string, returning to STEP S205.

[0051] In STEP S503, the display means displays the message in accordance with the format corresponding to the received special character string. Next, the subscriber finds whether or not the display means receives the special character string for the sake of format selecting (STEP S504), if the display means receives the special character string, returning STEP S503, while if the display means does not receive the special character string, returning to STEP S504.

[0052] Further, it is sufficient to commence the processing from the STEP S502, after performing processing of FIG. 3 or FIG. 4.

[0053] As mentioned above, according to the present invention, the selective-calling receiver is provided with the display means for realizing at least plural kinds of display formats, thus the selective-calling receiver is capable of changing the display format dynamically in accordance with the specified character included in the message or the received information of the selective-calling number.

[0054] Further, according to the present invention, it becomes to select the display format of information service by the side of transmission independently so as to make it the most suitable format to the content of the service regarding the display format of the information service dependent on the display screen of the conventional selective-calling receiver side, thus value-added of the information service increases.

[0055] Furthermore, maker side of the selective-calling receiver is capable of being adjusted to the format of the information service, thus being not forced the fixed number of digits common to the respective makers, so that there is the effect that the width of commodity planning of the selective-calling receiver increases.

[0056] While preferred embodiments of the invention have been described using specific terms, the description has been for illustrative purpose only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the following claims. 

What is claimed is:
 1. A radio communication device consisting of a transmitter and a receiver in which said receiver comprises: a radio section for receiving a selective-calling signal to demodulate it; a calling number storage section for storing therein a plurality of self-selective-calling numbers; an agreement detector for detecting whether or not demodulated said selective-calling number agrees with which one of said plurality of self-selective-calling numbers; a memory for storing therein a plurality of calling separation information for separating whether the message information following to said self-selective-calling number and the self-selective-calling number agreeing to be detected agree with which one of said plurality of self-selective-calling number; a indicator for displaying said message information; and a display means for permitting said message information within said memory to be displayed in said indicator, wherein said display means displays said message information in said indicator in accordance with prescribed display format determined beforehand in every said selective-calling number.
 2. A radio communication device as claimed in claim 1, wherein said display format includes a format for determining number of digits for display in the side of selective-calling receiver, and said display means does not performs a line feed according to a line feed code within said message information, thus said display means permits said message information to display to said indicator in conformity with the number of digits for display of said indicator.
 3. A radio communication device as claimed in claim 1, wherein said display format includes a format for determining the number of digits for display in the side of transmission, and said display means counts number of digits of said message information, when the number of digits of said message information is either smaller number than the number of digits of said indicator or equal to the number of digits of said indicator, said display means permits said message information to display on indicator while performing line feed by line feed code, while when the number of digits of said message information is larger number than the number of digits of said indicator, said display means permits said message information of the whole to display on the indicator while performing automatic scroll in the lateral direction.
 4. A radio communication device as claimed in claim 1, wherein said display means, when receiving a prescribed character string determined beforehand, changes said display format into a display format corresponding to said character string.
 5. A radio communication device as claimed in claim 2, wherein said display means, when receiving a prescribed character string determined beforehand, changes said display format into a display format corresponding to said character string.
 6. A radio communication device as claimed in claim 3, wherein said display means, when receiving a prescribed character string determined beforehand, changes said display format into a display format corresponding to said character string. 